The only ammo of those I have used that I would say is dirty is Blazer aluminum w/FP lead bullets. This was shooting it with a revolver which leaves more residue anyway because of the cylinder gap, but my hands were black when I finished the box. This doesn't happen with WWB or Remington UMC, or even my reloads using Bullseye. I suspect it is due to the lead bullets more than the powder or type of case.

"I personally think we developed language because of our deep inner need to complain."--Jane Wagner
"The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom."
-Isaac Asimov

Dirtyt bullets are not my favorite, the thing I am not a fan of is smokey rounds. I do shoot some competitive shooting and in the afternoon facing west and shooting 4 strings of 2, smoke and the sun coming over the berm can be a distraction I don't like. As far as the gun goes, I agree withthe previous poster, I too clean mine after each use. I like cleaning my guns and it doesn't take much time at all.

I know what I like and I load to that spec. I am happy and when I shoot happy is a good thing.